In this paper, we have prepared thin films by thermal evaporation on an ITO coated glass substrate. The thin film of an n-type material of CdS, having thickness as100, 150 and 200 nm, and also deposited CdTe film having a thickness 1μm over these films. We used the Silver paste to generate front and back contact for solar cell characterization. To increase the efficiency of solar cells the CdCl2 treatment has done with heat treatment using the furnace at 4000 C for 30 minutes for crystalline the structure. The UV-VIS-NIR spectrometer had used to study the optical absorption between 300-1100 nm, its transmission graph shows that the solar cell absorbed wavelength below 800nm. To study the I-V characteristics of solar cells we have used Keithley constant current supply, the result showed that the efficiency of solar cell increase 6.42, 7.07 and 9.10% with increasing thickness of an n-type layer of CdS (100,150 and 200nm respectively) and the SEM was described surface morphology of thin films.
Kumar, Hemant and Singh, Mangej
"Effect of Thickness Variation of the N-Type Layer in CdS/CdTe Solar Cell,"
International Journal of Thin Film Science and Technology: Vol. 10
, Article 10.
Available at: https://digitalcommons.aaru.edu.jo/ijtfst/vol10/iss2/10